One-to-one correspondence worksheet for Year 1 students, featuring activities on matching items like collars to dogs, chairs to family members, and plates to pizza slices.

Let's solve the problems on this Year 1 Autumn Term, Block 1: Place Value – One to One Correspondence worksheet step by step.

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🔹 Question 1: Are there enough collars for the dogs? Draw lines to check.

#### 🐶 Dogs:
There are 5 dogs shown in the image.

#### 🎒 Collars:
There are 5 collars shown above the dogs.

✔ Answer: Yes, there are enough collars for the dogs — one collar per dog.

👉 You would draw a line from each dog to a collar (one-to-one matching), and all dogs will have a collar.
➡️ So, yes, there are enough collars.

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🔹 Question 2:

#### 🪑 Chairs and Family

There is a table with 4 chairs around it.

The family consists of:
- 2 adults
- 3 children (total = 5 people)

So, 5 people need seats, but only 4 chairs are available.

#### a) Are there enough chairs for the family?
✘ No, there are not enough chairs.

#### b) How many more chairs do they need to have one each?
They need 5 - 4 = 1 more chair.

✔ Answer: 1 more chair

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🔹 Bonus Task (partially visible): Pizza Slices and Plates

We see:
- 6 slices of pizza
- Two children: Lucas and Olivia
- There are 6 empty plates below (likely for the pizza)

But the question says: *"Lucas and Olivia draw the number of plates that are needed so that there is one for each slice of pizza."*

👉 Since there are 6 slices, they need 6 plates.

✔ So, they should draw 6 plates — one for each slice.

This is another example of one-to-one correspondence: one plate per slice.

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✔ Summary of Answers:

#### Question 1:
- Yes, there are enough collars.
- Match each dog to one collar → 5 dogs ↔ 5 collars.

#### Question 2:
a) No, there are not enough chairs.
b) They need 1 more chair.

#### Bonus (Pizza):
- 6 slices → 6 plates needed.
- So, draw 6 plates.

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This worksheet helps children understand one-to-one correspondence, which is the foundation for counting and understanding quantity — matching each object to exactly one other object. It’s essential for early numeracy skills! 🌟